www.rsc.org/materials
... compounds are thus a straight consequence of the unsurpassed electron-withdrawing properties of F, which probably must be treated as a kind of force majeure exerted by F upon all atomic partners in its vicinity. F has a voracious appetite for grabbing electrons from other atoms: first of all the de ...
... compounds are thus a straight consequence of the unsurpassed electron-withdrawing properties of F, which probably must be treated as a kind of force majeure exerted by F upon all atomic partners in its vicinity. F has a voracious appetite for grabbing electrons from other atoms: first of all the de ...
Minerals - GVLibraries
... …as we explore the fascinating topic of minerals. Graphic Transition - What are Minerals? The mineral turquoise, in this piece of jewelry,… …and the mineral gypsum, used to make sheetrock, are just two examples of the more than 3,000 known minerals. Surprisingly, though, over 90% of the rocks in the ...
... …as we explore the fascinating topic of minerals. Graphic Transition - What are Minerals? The mineral turquoise, in this piece of jewelry,… …and the mineral gypsum, used to make sheetrock, are just two examples of the more than 3,000 known minerals. Surprisingly, though, over 90% of the rocks in the ...
and P- Doped Tin Oxide Nanowires - PDXScholar
... rpm for 15 minutes) after two hours of reaction time. The precipitate was dried at 50ºC in 2hrs on a hotplate. 0.2 g of 1,10-phenanthroline capped Sn NP powder was mixed with a mixture of 0.4 g of NaCl and 0.6 g of KCl, grounded into a fine powder, and heated at 750 °C for 2 h in a furnace. The molt ...
... rpm for 15 minutes) after two hours of reaction time. The precipitate was dried at 50ºC in 2hrs on a hotplate. 0.2 g of 1,10-phenanthroline capped Sn NP powder was mixed with a mixture of 0.4 g of NaCl and 0.6 g of KCl, grounded into a fine powder, and heated at 750 °C for 2 h in a furnace. The molt ...
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... convention (e.g., discussion by Heaney et al., 1994, p 8) which is critical for an unequivocal definition of crystal orientation, as well as regarding physical properties such as elasticity. Before entering a quartz structure into EBSD indexing software it is necessary to carefully check reflectors. M ...
... convention (e.g., discussion by Heaney et al., 1994, p 8) which is critical for an unequivocal definition of crystal orientation, as well as regarding physical properties such as elasticity. Before entering a quartz structure into EBSD indexing software it is necessary to carefully check reflectors. M ...
Crystal Structures, Thermal Analysis, and
... particularly insoluble in water. It is known that in order to maintain the concentration of active substance in the blood above the therapeutic threshold, arbidol should be taken by one dose every 3–4 h for several days, including night time, which makes effective treatment more difficult [19]. Ther ...
... particularly insoluble in water. It is known that in order to maintain the concentration of active substance in the blood above the therapeutic threshold, arbidol should be taken by one dose every 3–4 h for several days, including night time, which makes effective treatment more difficult [19]. Ther ...
Reprint - Liang Tong
... 2000), the pigeon enzyme in the quaternary complex also exhibits a closed conformation (Figs. 1A,B). Structure comparison showed a rms distance of 0.9 Å between 526 out of 541 equivalent C␣ atoms of the pigeon and the human enzymes (Fig. 1C). In addition, several regions of the pigeon ME structure s ...
... 2000), the pigeon enzyme in the quaternary complex also exhibits a closed conformation (Figs. 1A,B). Structure comparison showed a rms distance of 0.9 Å between 526 out of 541 equivalent C␣ atoms of the pigeon and the human enzymes (Fig. 1C). In addition, several regions of the pigeon ME structure s ...
aragonite - Celestial Earth Minerals
... banded aragonite, notably travertine, an aragonite-rich rock that forms in hot-springs environments. Metaphysical practitioners believe that aragonite enhances patience and responsibility, helps prepare for meditation, and reduces stress and anger. Because aragonite is thought to balance emotions an ...
... banded aragonite, notably travertine, an aragonite-rich rock that forms in hot-springs environments. Metaphysical practitioners believe that aragonite enhances patience and responsibility, helps prepare for meditation, and reduces stress and anger. Because aragonite is thought to balance emotions an ...
Aluminum Borohydride Complex with
... ethylenediamine (EDA) molecules. The structure is associated together by H···H bonds between [Al(EDA)3]3+, EDA, and BH4 groups. Each Al3+ cation is linked via six N atoms to three chemically equivalent EDA molecules to form an octahedrally coordinated complex as shown in Figure 2b. Each surrounding ...
... ethylenediamine (EDA) molecules. The structure is associated together by H···H bonds between [Al(EDA)3]3+, EDA, and BH4 groups. Each Al3+ cation is linked via six N atoms to three chemically equivalent EDA molecules to form an octahedrally coordinated complex as shown in Figure 2b. Each surrounding ...
Microwave Synthesis of Cuprous Oxide Micro
... shape. Any of these factors can become the key controlling parameter for the resulting morphologies[29] . In this study, the formation of the spherical crystals may be resulted from the effect of PVP template. Because ammonia solution exists, cupric tetraammino ions would generate before they were r ...
... shape. Any of these factors can become the key controlling parameter for the resulting morphologies[29] . In this study, the formation of the spherical crystals may be resulted from the effect of PVP template. Because ammonia solution exists, cupric tetraammino ions would generate before they were r ...
thesis_revised
... of plate shaped morphological features of the SBSmT ceramics. Interestingly, the dielectric constant of the SBSmT ceramics in the frequency range of 100 Hz - 1 MHz could be tuned as a function of sintering duration. It is observed that the SBSmT ceramics sintered at 1323 K for 10 h exhibited higher ...
... of plate shaped morphological features of the SBSmT ceramics. Interestingly, the dielectric constant of the SBSmT ceramics in the frequency range of 100 Hz - 1 MHz could be tuned as a function of sintering duration. It is observed that the SBSmT ceramics sintered at 1323 K for 10 h exhibited higher ...
Transition metal oxides ∓ Thermoelectric properties
... gradient and vice versa. TE materials are widely regarded as the materials that can provide potential solutions for power generation and refrigeration technologies as well as their future advancements [1–4]. Additionally, they offer opportunities for the development of technologies in areas such as ...
... gradient and vice versa. TE materials are widely regarded as the materials that can provide potential solutions for power generation and refrigeration technologies as well as their future advancements [1–4]. Additionally, they offer opportunities for the development of technologies in areas such as ...
Read the Nobel Lecture
... growth, source materials for a crystal growth are provided to the substrate in a form of a gas. Growth then takes place such that there is general alignment between the crystallographic axes of the grown crystals and the substrate. This method has been widely used in the growth of high-quality semic ...
... growth, source materials for a crystal growth are provided to the substrate in a form of a gas. Growth then takes place such that there is general alignment between the crystallographic axes of the grown crystals and the substrate. This method has been widely used in the growth of high-quality semic ...
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... two groups of prenyltransferases (9, 10) and was further validated unequivocally by the crystal structures of both OPP synthase and UPPs (11–16). The trans-type enzymes involve a mechanism of ionization, condensation and elimination reactions, which are initiated by breaking the bond between the pyr ...
... two groups of prenyltransferases (9, 10) and was further validated unequivocally by the crystal structures of both OPP synthase and UPPs (11–16). The trans-type enzymes involve a mechanism of ionization, condensation and elimination reactions, which are initiated by breaking the bond between the pyr ...
Heterogeneous Nanonucleants - Manuscript - FINAL
... assumed to exchange directly with a cluster. Instead, first an intermediate dense liquid droplet is formed, followed by nucleation of an ordered crystalline structure [17]. At sufficiently high supersaturation and low temperature, the critical nucleus size is unity, such that every molecule in the s ...
... assumed to exchange directly with a cluster. Instead, first an intermediate dense liquid droplet is formed, followed by nucleation of an ordered crystalline structure [17]. At sufficiently high supersaturation and low temperature, the critical nucleus size is unity, such that every molecule in the s ...
Revisit and insight into the dilemma of strong and brittle materials
... of grain size, is a standard analysis in terms of the discipline of metallurgy and modern MSE since the middle of the 1950’s [6, 7]. We can easily predict higher flow stress and fracture stress for polycrystals with the finer grain size. However, there is a general recognition that the experimental da ...
... of grain size, is a standard analysis in terms of the discipline of metallurgy and modern MSE since the middle of the 1950’s [6, 7]. We can easily predict higher flow stress and fracture stress for polycrystals with the finer grain size. However, there is a general recognition that the experimental da ...
Full Text - The International Journal of Developmental Biology
... developing mineral phase, also undergoes profound alteration during this stage. The extracellular organic matrix comprises a range of proteins many of which are unique to enamel. These proteins can be divided into two broad groups: 1) the amelogenins and their processing products which form the bulk ...
... developing mineral phase, also undergoes profound alteration during this stage. The extracellular organic matrix comprises a range of proteins many of which are unique to enamel. These proteins can be divided into two broad groups: 1) the amelogenins and their processing products which form the bulk ...
Exploration of new superconductors and
... this team organization is a unique feature of this project. It is his belief that excellent solid state chemists will find new properties by serendipity, even if they fail to succeed in the hunt for new high Tc materials. This phylosophy was set at the beginning of the project, i.e., “All or somethi ...
... this team organization is a unique feature of this project. It is his belief that excellent solid state chemists will find new properties by serendipity, even if they fail to succeed in the hunt for new high Tc materials. This phylosophy was set at the beginning of the project, i.e., “All or somethi ...
Magnetite from magnetotactic bacteria: Size distributions and twinning
... We studied intracellular magnetite particles produced by several morphological types of magnetotactic bacteria including the spirillar (helical) freshwater species, Magnetospirillum magnetotacticum, and four incompletely characterized marine strains: MV-1, a curved rodshaped bacterium; MC-1 and MC-2 ...
... We studied intracellular magnetite particles produced by several morphological types of magnetotactic bacteria including the spirillar (helical) freshwater species, Magnetospirillum magnetotacticum, and four incompletely characterized marine strains: MV-1, a curved rodshaped bacterium; MC-1 and MC-2 ...
Carbonate Petrography (2).
... The common carbonate minerals fall into three groups: Calcite group Dolomite group Aragonite group Calcite, dolomite, and aragonite are the only volumetrically important minerals in carbonate rocks ...
... The common carbonate minerals fall into three groups: Calcite group Dolomite group Aragonite group Calcite, dolomite, and aragonite are the only volumetrically important minerals in carbonate rocks ...
EMISSION, KINETIC AND MAGNETIC PHENOMENA IN
... In this work emission, optical, electrical and magnetic properties of the d- and f - elements doped zinc selenide crystals were investigated within a wide temperature range. Doping was performed in various technological processes: during the growth by chemical vapor transport method; by thermal diff ...
... In this work emission, optical, electrical and magnetic properties of the d- and f - elements doped zinc selenide crystals were investigated within a wide temperature range. Doping was performed in various technological processes: during the growth by chemical vapor transport method; by thermal diff ...
piezoelectric anisotropy and free energy instability in
... The perovskites of the particular interest for this work are: potassium niobate (KNbO3 ) - firstly, the electromechanical properties data set of this material can be found in several papers (see Chapter 3 for a review), and the most striking feature about these results is their inconsistency and inc ...
... The perovskites of the particular interest for this work are: potassium niobate (KNbO3 ) - firstly, the electromechanical properties data set of this material can be found in several papers (see Chapter 3 for a review), and the most striking feature about these results is their inconsistency and inc ...
PPT - Physikalisches Institut Heidelberg
... exciting harmonic separation – clear advantage for 3D RCE; here, contrary to the 2D RCE case, each resonating harmonic is characterized not only by its frequency ω klmbut also by its well defined wave vector Kklm with |Kkl|m| not equal, generally, to ωklm; a) sensitivity to other, besides the oscill ...
... exciting harmonic separation – clear advantage for 3D RCE; here, contrary to the 2D RCE case, each resonating harmonic is characterized not only by its frequency ω klmbut also by its well defined wave vector Kklm with |Kkl|m| not equal, generally, to ωklm; a) sensitivity to other, besides the oscill ...
Crystal structure
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms, ions or molecules in a crystalline liquid or solid. It describes a highly ordered structure, occurring due to the intrinsic nature of its constituents to form symmetric patterns.The crystal lattice can be thought of as an array of 'small boxes' infinitely repeating in all three spatial directions. Such a unit cell is the smallest unit of volume that contains all of the structural and symmetry information to build-up the macroscopic structure of the lattice by translation.Patterns are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group.A crystal's structure and symmetry play a role in determining many of its physical properties, such as cleavage, electronic band structure, and optical transparency.